How to orchestrate Microflow with legacy systems? API needed?

Hi, I want my Microflows to integrate with my Legacy Systems (call some of their methods). Do my Legacy Systems have to respect some kind of API, in order to being "compatible" with the Microflow? Is this API documented somewhere? Thanks.
1 answers

You can not call external API's directly from a microflow. Only if your legacy system has a webservice interface it can be done. For other API's you need a Java Action, but not only java API's can be used. Otherwise you need to expose the API via Java or a web service.